CN201368879Y - Biological test sensor - Google Patents

Biological test sensor Download PDF

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Publication number
CN201368879Y
CN201368879Y CNU2009201062512U CN200920106251U CN201368879Y CN 201368879 Y CN201368879 Y CN 201368879Y CN U2009201062512 U CNU2009201062512 U CN U2009201062512U CN 200920106251 U CN200920106251 U CN 200920106251U CN 201368879 Y CN201368879 Y CN 201368879Y
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CN
China
Prior art keywords
plate
push
test
axis
cantilever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2009201062512U
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Chinese (zh)
Inventor
鹿建春
刘毅
李劲松
刘强
李娜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Huifenglong Economic And Technology Development Co ltd
Institute of Microbiology and Epidemiology of AMMS
Original Assignee
Beijing Huifenglong Economic And Technology Development Co ltd
Institute of Microbiology and Epidemiology of AMMS
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Filing date
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Application filed by Beijing Huifenglong Economic And Technology Development Co ltd, Institute of Microbiology and Epidemiology of AMMS filed Critical Beijing Huifenglong Economic And Technology Development Co ltd
Priority to CNU2009201062512U priority Critical patent/CN201368879Y/en
Application granted granted Critical
Publication of CN201368879Y publication Critical patent/CN201368879Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a biological test sensor, which is characterized in that the sensor comprises an installation rack, a cantilever mechanism, a test plate bin, a peristaltic pump and an MCU, wherein the installation rack consists of a side plate, a rear side plate, a transverse support plate and a support beam; a guide rail is horizontally arranged on the support beam; the cantilever mechanism comprises a linear stepping motor and a photoelectric conversion element; the output end of the linear stepping motor is connected with a needle head; the cantilever mechanism is slidingly arranged on the guide rail and is connected with a transmission belt; the transmission belt is connected with the output end of a stepping motor; the test plate bin is an all-round closed rectangular frame and is arranged on the transverse support plate below the cantilever mechanism; the transverse support plate at one side of the test plate bin is provided with a liquid level detecting window which is internally provided with a liquid level detecting switch; the peristaltic pump is connected with a pipeline of which the outlet end is connected with the needle head; and the MCU is connected with the input ends of the stepping motors and an electromagnet. The biological test sensor realizes automation of the biological test, and can be widely used for online monitoring of the filed such as environment protection, medical diagnosis and food and medicine production.

Description

A kind of bioassay sensor
Technical field
The utility model relates to a kind of sensor, particularly about a kind of full-automatic bioassay sensor that is used for whether containing in the test samples liquid toxic ingredient.
Background technology
Immunochromatographic method (Immunochromatography) is a kind of quick diagnosis technology of rising in recent years, its principle is a certain district band that special antibody is fixed in nitrocellulose filter earlier, after nitrocellulose filter one end of drying immerses sample, because capillarity, sample moves forward along this film, when moving to when being fixed with antibody regional, corresponding antigen promptly combines with this antibody generation specificity in the sample, if can make this zone show certain color with immune colloid gold or immuno-enzymatic dyeing, thereby realize specific immunodiagnosis.
Immuno-gold labeling technology (Immunogold labelling techique) utilizes gold grain to have the characteristic of high electron density, when gold mark albumen is assembled in a large number at corresponding part place, can form macroscopic redness or pink spot, thereby be used for qualitative or semiquantitative tachysynthesis detection method.Its ultimate principle is with on the antigen coated detection line at nitrocellulose filter (T), and the synthetic antibody sandwich on the control line (C) of nitrocellulose filter, is placed on the nitrocellulose filter lower end with the antigen drying of colloid gold label.Sample is added in the well, because the principle of chromatography, tested sample begins to move up along paper slip, when meeting dry gold mark antigen, with its dissolving, and is being with gold mark antigen to continue up to move, to the detection line of nitrocellulose filter.If when having antibody to exist in the sample, the antigen and the golden antibody of marking in antigen and the sample that are coated on the detection line will form a mauve sandwich immunoassay compound on detection line.Detection line is positioned at the control line lower end, and sample will reach the control line place just must be earlier by detection line, just can be judged as the positive when detection line and control line place all manifest; Detection line does not occur, and can be judged as feminine gender when having only control line to occur.
In recent years, colloid gold label immune chromatography test paper detection technique has simple and convenient, reaction fast, characteristics such as identification are widely used in fields such as medical diagnosis, biological and chemical check easily.This detection method both had been applicable to the naked eyes visual determination, but also instrument identification, but have can not quantitative measurment for visual determination, and can only observational measurement; The objectivity of measurement result is poor; Can not monitoring bio the shortcomings such as dynamic process of reaction.In order to overcome these shortcomings, domestic some detecting instruments of having developed in succession, as: on October 29th, 2003, disclosed publication number was CN1451963A, and the utility model patent name is called: gold-label test strip quantitative testing method and system; The Granted publication of authorizing on February 15th, 2006 number is CN2758754Y, and the utility model patent name is called: gold-marking test strip fibre-optical probe device; On January 31st, 2007, disclosed publication number was CN1904592A, and the utility model patent name is called: the baffled photometer of gold-marking immunity test strips; On November 28th, 2007, disclosed publication number was CN101078722A, and the utility model patent name is called: a kind of gold marked reagent detection by quantitative device and assay method.The exploitation of these instruments has overcome some shortcomings that the artificial vision judges, has improved detection level, helps discerning the standardization of judgement.But, more than these instruments except the identification decision as a result, other operations all are manually to finish, and once can only detect 1 sample, can't realize that online on-line automatic work and a plurality of sample detect simultaneously.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to propose a kind of full-automatic bioassay sensor that is used for whether containing in the test samples liquid toxic ingredient.
For achieving the above object, the utility model is taked following technical scheme: a kind of bioassay sensor is characterized in that: it comprises an erecting frame, a cantilever mechanism, a test plate bin, a peristaltic pump and a single-chip microcomputer; Described erecting frame is made up of biside plate, a back side panel, a horizontal support plate and a brace summer, has been horizontally disposed with at least one X-axis guide rail on the described brace summer; Described cantilever mechanism comprises that a vertically disposed Z shaft step motor and is fixed on the light source and the photoelectric conversion part of described Z shaft step motor one side, and wherein said Z shaft step motor is a straight line stepper motor, and its output terminal connects a syringe needle; Described cantilever mechanism is slidingly arranged on the described X-axis guide rail, and described cantilever mechanism connects a driving, and it makees straight-line driving belt on described X-axis guide rail, described driving belt connects the output terminal of an X-axis stepper motor, and described X-axis stepper motor is fixed on the described back side panel; The described back side panel of described driving belt one end is provided with an X-axis limit switch that is connected with described X-axis stepper motor; Also be provided with a Z axle limit switch that is connected with described Z shaft step motor on the described cantilever mechanism; Described test plate bin is the closed rectangle framework in a four sides, and it is arranged on the horizontal support plate of cantilever mechanism below; Offer the Level Detection window of a circle on the described horizontal support plate of described test plate bin one side, be provided with a Level Detection switch in the described Level Detection window; Described peristaltic pump is fixed on the described back side panel of described horizontal support plate bottom, and it connects a pipeline, and the inlet end of described pipeline connects outside place, liquid inlet, and endpiece is connected with described syringe needle; Described single-chip microcomputer is fixed on the described back side panel, and it connects the input end of each described stepper motor and electromagnet, and is equipped with on the described single-chip microcomputer and is used for the communication serial port that is connected with host computer.
Described test plate bin comprises that a rectangular cavities and that runs through described horizontal support plate is movably arranged on the pallet in the described rectangular cavities; The both sides, front and back of described test plate bin are respectively arranged with a riser, and the two ends of described riser respectively have an extension arm at vertical direction, and the top of described extension arm is provided with a hook, and four described hooks connect described pallet by four springs; The described riser of one side is provided with the detector switch that circles or whirl in the air, be symmetrically arranged with four big electromagnet and four guide wheels on the described horizontal support plate in the two described riser outsides, the flexible end of each described big electromagnet connects a wedge-shaped member, has four square openings on the described riser corresponding with described wedge-shaped member position; Be symmetrically arranged with two little electromagnet before and after the right side of described test plate bin, the flexible end of described little electromagnet connects a baffle plate.
Be provided with a push-plate mechanism in described test plate bin left side, described push-plate mechanism comprises a push-plate, described push-plate outside connection one is horizontally set on the push-plate axle of described horizontal support plate top, the other end of described push-plate axle connects the upper end of the push-plate connecting link that vertically runs through described horizontal support plate, the lower end of described push-plate connecting link connects a horizontally disposed tooth bar, the lower horizontal of described tooth bar is provided with a push-plate axis rail that is used for supporting and fixing described tooth bar, and described push-plate axis rail is fixed on the two described side plates; Be fixed with a push-plate stepper motor that is connected with described tooth bar on the described push-plate axis rail, the arranged outside of described push-plate connecting link has a push-plate limit switch that is connected with described push-plate stepper motor.
It also comprises a test panel, described test panel is a rectangle disk body that matches with described test plate bin shape, described test panel is provided with several rectangle test paper grooves that is used for placing test-strips, and the bottom of each described test paper groove is provided with one and is attached thereto logical circular liquid injection hole; The both sides, front and back of described test panel are provided with four wedge-shaped slots that match with the wedge-shaped member of described big electromagnet; The upper surface of described test panel is coated with one deck protective film.
The below of described Level Detection window is provided with one and is used for collecting the waste liquid box of liquid waste.
The photoemission that described X-axis limit switch, Z axle limit switch and Level Detection switch adopt receives pipe, and what described circle or whirl in the air detector switch and push-plate axle limit switch adopted is magnetic switch.
The utility model is owing to take above technical scheme, it has the following advantages: 1, the pipeline that is connected with syringe needle in the utility model can be connected with correlated sampling instrument or sampling receptacle, by peristaltic pump Automatic Extraction liquid sample, and the air in the automatic discharged liquid pipeline, cantilever mechanism drives the syringe needle level and vertically moves, and has realized the automatic ration fluid injection of syringe needle exactly.2, light source of the present utility model and photoelectric conversion part convert the grey scale signal of test strips to voltage signal, and be input to the AD input end of single-chip microcomputer, AD converter in the single-chip microcomputer converts the voltage signal of simulation to digital signal, be transferred to host computer by the communication serial ports then, show testing result in host computer, whole testing process need not manually-operated.3, the utility model is integrated in a plurality of test strip on the test panel, has realized that a plurality of samples detect simultaneously.4, the utility model can be automatically be collected in the discharging of residue liquid sample in the waste liquid box by peristaltic pump, and flushing liquid pipeline automatically.5, the utility model is provided with push-plate mechanism in a side of test plate bin, and push-plate mechanism can change test panel automatically after detecting end, in order to detecting next time.But 6, both field controls of the utility model also can also realize Long-distance Control and detection by the connection of RS485/422 etc., have alleviated operator's labour intensity, have improved operator's security.In sum, the utility model has been realized the robotization of biological test, can be widely used in the on-line monitoring in environmental protection, medical diagnosis and fields such as food, pharmaceutical production.
Description of drawings
Fig. 1 is a perspective view of the present utility model
Fig. 2 is a front view of the present utility model
Fig. 3 is the vertical view of Fig. 2
Fig. 4 is a test panel structural representation of the present utility model
Workflow synoptic diagram when Fig. 5 is the utility model push-plate
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As Fig. 1~shown in Figure 3, the utility model comprises an erecting frame 1, a cantilever mechanism 2, a test plate bin 3, a push-plate mechanism 4, a peristaltic pump 5 and a single-chip microcomputer (not shown).Erecting frame 1 is made up of biside plate 11, a back side panel 12, a horizontal support plate 13 and a brace summer 14, has been horizontally disposed with two X-axis guide rails 6 (only as example, being not limited to this) on brace summer 14.
Cantilever mechanism 2 comprises that a vertically disposed Z shaft step motor 21 and is fixed on the light source and the photoelectric conversion part 22 on Z shaft step motor 21 right sides, wherein Z shaft step motor 21 is a straight line stepper motor, its output terminal connects a syringe needle 23, and syringe needle 23 is vertically done rectilinear motion under Z shaft step motor 21 drives.Cantilever mechanism 2 is slidingly arranged on the two X-axis guide rails 6, and cantilever mechanism 2 connects one and drive it make straight-line driving belt 24 on X-axis guide rail 6, and driving belt 24 connects the output terminal of an X-axis stepper motor 25, and X-axis stepper motor 25 is fixed on the back side panel 12.The back side panel 12 of driving belt 24 1 ends is provided with an X-axis limit switch 26 that is connected with X-axis stepper motor 25, is used for determining the null position of cantilever mechanism 2 on X-axis guide rail 6.Also be provided with a Z axle limit switch 27 that is connected with Z shaft step motor 21 on the cantilever mechanism 2, be used for determining the null position of syringe needle 23 on cantilever mechanism 2.
Test plate bin 3 is arranged on the horizontal support plate 13 of cantilever mechanism 2 belows, and it comprises that a rectangular cavities 301 and that runs through horizontal support plate 13 is movably arranged on the pallet 302 in the rectangular cavities 301.The both sides, front and back of test plate bin 3 are respectively arranged with a riser 303, the two ends of riser 303 respectively have an extension arm 304 at vertical direction, the top of extension arm 304 is provided with a hook 305, four hooks 305 connect pallet 302 by four springs 306, thereby pallet 302 can be moved up and down in rectangular cavities 301.One cant board 303 is provided with the detector switch 307 that circles or whirl in the air, be symmetrically arranged with four big electromagnet 308 and four guide wheels 309 on the horizontal support plate 13 in two risers, 303 outsides, the flexible end of each big electromagnet 308 connects a wedge-shaped member 310, has four square openings on the riser 303 corresponding with wedge-shaped member 310 positions.Be symmetrically arranged with two little electromagnet 311 before and after the right side of test plate bin 3, the flexible end of little electromagnet 311 connects a baffle plate 312.Offer the Level Detection window 7 of a circle on the horizontal support plate 13 in test plate bin 3 left sides, be provided with a Level Detection switch 71 in the Level Detection window 7.The below of Level Detection window 7 is provided with a waste liquid box 8, is used for collecting the liquid waste that uses.
Push-plate mechanism 4 comprises that one is arranged on the push-plate 41 in test plate bin 3 left sides, push-plate 41 outsides connection one is horizontally set on the push-plate axle 42 of horizontal support plate 13 tops, the other end of push-plate axle 42 connects the upper end of the push-plate connecting link 43 that vertically runs through horizontal support plate 13, the lower end of push-plate connecting link 43 connects a horizontally disposed tooth bar 44, the lower horizontal of tooth bar 44 is provided with a push-plate axis rail 45 that is used for supporting with stationary rack 44, and push-plate axis rail 45 is fixed on the biside plate 11.Be fixed with a push-plate stepper motor that is connected with tooth bar 44 46 push-plate stepper motors 46 on the push-plate axis rail 45 and in test plate bin 3, do horizontal rectilinear motion by push-plate mechanism 4 drive push-plates 41.The arranged outside of push-plate connecting link 43 has a push-plate limit switch 47 that is connected with push-plate stepper motor 46, is used for limiting the stroke of push-plate 41.
Peristaltic pump 5 is fixed on the back side panel 12 of horizontal support plate 13 bottoms, and it connects a pipeline 51, and the inlet end of pipeline 51 connects outside place, liquid inlet, and endpiece is connected with syringe needle 23.
Single-chip microcomputer is fixed on the back side panel 12, and it connects the input end of each stepper motor and electromagnet, controls the motion of each stepper motor and electromagnet.Also be equipped with communication serial port on this single-chip microcomputer, can be connected with host computer (as PC), and with testing result and data input host computer.
As shown in Figure 4, the utility model also comprises a test panel 9 that matches with test plate bin 3 shapes, test panel 9 is provided with several rectangle test paper grooves 91 that is used for placing test strips, and the bottom of each test paper groove 91 is provided with one and is attached thereto logical circular liquid injection hole 92.The both sides, front and back of test panel 9 are provided with four wedge-shaped slots 93 that match with the wedge-shaped member 310 of big electromagnet 308.The upper surface of test panel 9 is coated with one deck protective film, to prevent that test-strips from making moist and by contamination by dust.Test panel 9 is placed on the pallet 302 in advance, once can put into more than ten.
In the foregoing description, the photoemission that X-axis limit switch 26, Z axle limit switch 27 and Level Detection switch 71 adopt receives pipe, and what circle or whirl in the air detector switch 307 and push-plate axle limit switch 48 adopted is magnetic switch.
In the foregoing description,, also push-plate mechanism 4 can be set simultaneously if the each detection that only need finish a test panel 9 then can be reduced to test plate bin 3 rectangular channel.
The utility model at first will be carried out making each motor get back to null position, and make it enter idle condition after powering on, and waits for receiving the host computer instruction.After receiving enabled instruction, workflow of the present utility model is divided into and is following six stages:
1, fill pipe: X-axis stepper motor 25 drives cantilever mechanisms 2 and moves horizontally, move to Level Detection window 7 directly over after stop; Then, Z shaft step motor 21 drives syringe needles 23 and moves down, and stops after moving near Level Detection switch 71; Then, peristaltic pump 5 begins to extract liquid sample, and liquid will begin to be full of pipeline 51 from pipeline 51 inlet ends, after liquid arrives syringe needle 23, will ooze from needle point; The flow of liquid that oozes is through Level Detection switch 71, and Level Detection switch 71 will be triggered, and then Z shaft step motor 21 is moved upwards up to null position.
2, inject sample: X-axis stepper motor 25 drive cantilever mechanisms 2 move to first liquid injection hole 92 on the test panel 9 directly over after stop; then Z shaft step motor 21 drive syringe needles 23 move down; make needle point puncture protective film on the test panel 9, be inserted in the liquid injection hole 92.Then, peristaltic pump 5 slow rotation are injected in liquid injection hole 92 and are stopped behind several liquid samples approximately; Syringe needle 23 upwards revert to null position then.So just finished the fluid injection of a liquid injection hole 92.12 remaining liquid injection holes 92 are all carried out with same step.After having injected whole 13 liquid injection holes 92, X-axis stepper motor 25 revert to null position.
3, soak into: be the infiltrating time of liquid sample and test strips during this period of time, generally be about about five minutes.
4, scanning: scanning is exactly to utilize light source and photoelectric conversion part 22 that the striped of test strips on the test panel 9 is read, and upload to host computer, its principle of work is: light source and photoelectric conversion part 22 convert the grey scale signal of test strips to voltage signal, after the sequence of operations such as faint voltage signal process amplification, filtering, be input to the AD input end of single-chip microcomputer, AD converter in the single-chip microcomputer converts the voltage signal of simulation to digital signal, data are transferred to host computer through after simply handling by the communication serial ports then.This process is a dynamic process, continues nearly tens minutes, therefore, and the reading of data that should not stop during this period of time.Light source and photoelectric conversion part 22 will carry out reading for ten times circulation altogether, read circulation at every turn and all 13 test strips are read through.X-axis stepper motor 25 drive light sources and photoelectric conversion part 22 move to the position of test strips, start light source and photoelectric conversion part 22 beginning reading of data.In order to eliminate the alignment error of camera lens and test strips, near each test strips, X-axis stepper motor 25 is all wanted fine motion and reading of data repeatedly.
5, change test panel: every test panel 9 can only use once, when test panel 9 is finished using, will be pulled to useless dish tube, moves in order to using next time on following new building is automatic.During push-plate, push-plate stepper motor 46 cooperatively interacts with each electromagnet, finish whole operation, detailed process following (as shown in Figure 5): at first, four big electromagnet 308 actions, wedge-shaped member 310 cooperates the downward power of generation with the wedge-shaped slot 93 of test panel 9, make uppermost test panel 9 and following test panel 9 disengagings; Then, push-plate 41 returns original position after uppermost test panel 9 is turned down at once; Then, little electromagnet 311 actions, the baffle plate 312 of little electromagnet 311 becomes a frame type that the four sides is closed with other trihedrals, and the test panel 9 that moves in the assurance can not be shifted; Then, big electromagnet 308 dead electricity, following test panel 9 is upwards filled up; At last, little electromagnet 311 dead electricity are finished whole push-plate operation.
6, pipe blow-through: after detect finishing, liquid sample is disposed to waste liquid box 8, in order to recheck or after give.Residue test liquids in the pipeline 51 are known from experience influence use next time, so the cleaning fluid of annotating to pipeline 51 in after the liquid sample emptying, are disposed to waste liquid box 8 by peristaltic pump 5, after three times, close liquid road valve repeatedly, and the utility model is returned to holding state.
In sum, the utility model can be realized the robotization of biological test, and can also realize Long-distance Control and detection by the connection of RS485/422 etc., and the approach of safe ready is provided for pathogen detection.
The utility model only describes with the foregoing description; the structure of each parts, the position is set and connects and all can change to some extent; on the basis of technical solutions of the utility model; all improvement and equivalents of individual component being carried out according to the utility model principle all should not got rid of outside protection domain of the present utility model.

Claims (9)

1, a kind of bioassay sensor is characterized in that: it comprises an erecting frame, a cantilever mechanism, a test plate bin, a peristaltic pump and a single-chip microcomputer; Described erecting frame is made up of biside plate, a back side panel, a horizontal support plate and a brace summer, has been horizontally disposed with at least one X-axis guide rail on the described brace summer;
Described cantilever mechanism comprises that a vertically disposed Z shaft step motor and is fixed on the light source and the photoelectric conversion part of described Z shaft step motor one side, and wherein said Z shaft step motor is a straight line stepper motor, and its output terminal connects a syringe needle; Described cantilever mechanism is slidingly arranged on the described X-axis guide rail, and described cantilever mechanism connects a driving, and it makees straight-line driving belt on described X-axis guide rail, described driving belt connects the output terminal of an X-axis stepper motor, and described X-axis stepper motor is fixed on the described back side panel; The described back side panel of described driving belt one end is provided with an X-axis limit switch that is connected with described X-axis stepper motor; Also be provided with a Z axle limit switch that is connected with described Z shaft step motor on the described cantilever mechanism;
Described test plate bin is the closed rectangle framework in a four sides, and it is arranged on the horizontal support plate of cantilever mechanism below; Offer the Level Detection window of a circle on the described horizontal support plate of described test plate bin one side, be provided with a Level Detection switch in the described Level Detection window;
Described peristaltic pump is fixed on the described back side panel of described horizontal support plate bottom, and it connects a pipeline, and the inlet end of described pipeline connects outside place, liquid inlet, and endpiece is connected with described syringe needle;
Described single-chip microcomputer is fixed on the described back side panel, and it connects the input end of each described stepper motor and electromagnet, and is equipped with on the described single-chip microcomputer and is used for the communication serial port that is connected with host computer.
2, a kind of bioassay sensor as claimed in claim 1 is characterized in that: described test plate bin comprises that a rectangular cavities and that runs through described horizontal support plate is movably arranged on the pallet in the described rectangular cavities; The both sides, front and back of described test plate bin are respectively arranged with a riser, and the two ends of described riser respectively have an extension arm at vertical direction, and the top of described extension arm is provided with a hook, and four described hooks connect described pallet by four springs; The described riser of one side is provided with the detector switch that circles or whirl in the air, be symmetrically arranged with four big electromagnet and four guide wheels on the described horizontal support plate in the two described riser outsides, the flexible end of each described big electromagnet connects a wedge-shaped member, has four square openings on the described riser corresponding with described wedge-shaped member position; Be symmetrically arranged with two little electromagnet before and after the right side of described test plate bin, the flexible end of described little electromagnet connects a baffle plate.
3, a kind of bioassay sensor as claimed in claim 2, it is characterized in that: be provided with a push-plate mechanism in described test plate bin left side, described push-plate mechanism comprises a push-plate, described push-plate outside connection one is horizontally set on the push-plate axle of described horizontal support plate top, the other end of described push-plate axle connects the upper end of the push-plate connecting link that vertically runs through described horizontal support plate, the lower end of described push-plate connecting link connects a horizontally disposed tooth bar, the lower horizontal of described tooth bar is provided with a push-plate axis rail that is used for supporting and fixing described tooth bar, and described push-plate axis rail is fixed on the two described side plates; Be fixed with a push-plate stepper motor that is connected with described tooth bar on the described push-plate axis rail, the arranged outside of described push-plate connecting link has a push-plate limit switch that is connected with described push-plate stepper motor.
4, as claim 1 or 2 or 3 described a kind of bioassay sensors, it is characterized in that: it also comprises a test panel, described test panel is a rectangle disk body that matches with described test plate bin shape, described test panel is provided with several rectangle test paper grooves that is used for placing test-strips, and the bottom of each described test paper groove is provided with one and is attached thereto logical circular liquid injection hole; The both sides, front and back of described test panel are provided with four wedge-shaped slots that match with the wedge-shaped member of described big electromagnet; The upper surface of described test panel is coated with one deck protective film.
5, as claim 1 or 2 or 3 described a kind of bioassay sensors, it is characterized in that: the below of described Level Detection window is provided with one and is used for collecting the waste liquid box of liquid waste.
6, a kind of bioassay sensor as claimed in claim 4 is characterized in that: the below of described Level Detection window is provided with one and is used for collecting the waste liquid box of liquid waste.
7, as claim 1 or 2 or 3 described a kind of bioassay sensors, it is characterized in that: the photoemission that described X-axis limit switch, Z axle limit switch and Level Detection switch adopt receives pipe, and what described circle or whirl in the air detector switch and push-plate axle limit switch adopted is magnetic switch.
8, a kind of bioassay sensor as claimed in claim 4, it is characterized in that: the photoemission that described X-axis limit switch, Z axle limit switch and Level Detection switch adopt receives pipe, and what described circle or whirl in the air detector switch and push-plate axle limit switch adopted is magnetic switch.
9, a kind of bioassay sensor as claimed in claim 6, it is characterized in that: the photoemission that described X-axis limit switch, Z axle limit switch and Level Detection switch adopt receives pipe, and what described circle or whirl in the air detector switch and push-plate axle limit switch adopted is magnetic switch.
CNU2009201062512U 2009-03-18 2009-03-18 Biological test sensor Expired - Fee Related CN201368879Y (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102135533A (en) * 2010-01-25 2011-07-27 北京汇丰隆生物科技发展有限公司 Portable biological analysis sensor
CN101504418B (en) * 2009-03-18 2012-08-08 中国人民解放军军事医学科学院微生物流行病研究所 Bioassay sensor
CN105044336A (en) * 2015-07-25 2015-11-11 中山瑞福医疗器械科技有限公司 Multi-channel detecting instrument
CN110221061A (en) * 2019-06-21 2019-09-10 上海交通大学 It is a kind of for magnetic chromatography chip can self-positioning transmission device
CN110514657A (en) * 2019-09-09 2019-11-29 李永健 A kind of medical treatment test paper check analysis instrument device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101504418B (en) * 2009-03-18 2012-08-08 中国人民解放军军事医学科学院微生物流行病研究所 Bioassay sensor
CN102135533A (en) * 2010-01-25 2011-07-27 北京汇丰隆生物科技发展有限公司 Portable biological analysis sensor
CN105044336A (en) * 2015-07-25 2015-11-11 中山瑞福医疗器械科技有限公司 Multi-channel detecting instrument
CN110221061A (en) * 2019-06-21 2019-09-10 上海交通大学 It is a kind of for magnetic chromatography chip can self-positioning transmission device
CN110221061B (en) * 2019-06-21 2021-07-13 上海交通大学 Self-positioning transmission device for magnetic chromatography chip
CN110514657A (en) * 2019-09-09 2019-11-29 李永健 A kind of medical treatment test paper check analysis instrument device

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